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OpenStudy (anonymous):
mr + ns - nr - ms
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OpenStudy (anonymous):
no idea sorry
OpenStudy (anonymous):
factor grouping
OpenStudy (anonymous):
rewrite: mr-nr+ns-ms=r(m-n)-s(m-n)=(r-s)(m-n)
OpenStudy (anonymous):
so is the answer (r-s)(m-n)
OpenStudy (anonymous):
yeah
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OpenStudy (anonymous):
thank u
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